How is chest pain characterized in pneumomediastinum (PM)?

Updated: Feb 26, 2019
  • Author: Patrick L Carolan, MD; Chief Editor: Girish D Sharma, MD, FCCP, FAAP  more...
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In spontaneous pneumomediastinum (SPM), pain is said to be a feature in 50-90% of cases. [14, 15] Typically, it is retrosternal in location and worsened by inspiratory maneuvers. The pain may radiate to the shoulders or back suggesting the possibility of myocardial infarction or pericarditis, under the appropriate clinical circumstances.

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